I upgraded the kernel when we did the firewall change and it might be that we got a panic tonight because of this. The problem is that the screen was blank so I am uncertain just what happened. In any case I will give this kernel a second shot so we run it tonight aswell.
A warning, this might cause the server to panic again tonight, we will reboot it in the morning, you have been warned. 🙂
We really need to figure this one out!